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Mathematics 20 Online
MsBrains (ms-brains):

Question in the comments, Please help me!

MsBrains (ms-brains):

OpenStudy (baconboy73):

The formula for a direct variation equation is f(x) = kx. You have a value for x and a value for f(x). So solve for k and replace the k in f(x) = kx with that number you found. That should give you the answer :)

OpenStudy (kayders1997):

Did you get it?

MsBrains (ms-brains):

No..not yet @kayders1997 Do you think you show me how to do it, I trying to study this, but I keep getting stuck

MsBrains (ms-brains):

am*

OpenStudy (kayders1997):

okay so you have f(x)=-9 when x=3 the equation for direct variation is f(x)=xk so you have your x and you have your f(x) so you plug in your value -9=3k do you understand where this is coming from?

OpenStudy (kayders1997):

Or you could think of it this way you have the number x when you plug x (3) into one of the equations when are you going to get -9 f(x)

OpenStudy (kayders1997):

does this make sense @Ms-Brains

MsBrains (ms-brains):

yes

OpenStudy (kayders1997):

good :)

OpenStudy (kayders1997):

Do you have any other questions?

MsBrains (ms-brains):

Yes, one more but I will post in a second

OpenStudy (kayders1997):

Okay

MsBrains (ms-brains):

Wait, so he problem we just worked on, the answer would be...B?

OpenStudy (kayders1997):

Yes

OpenStudy (kayders1997):

Are you going to put your other question here or a different tab?

MsBrains (ms-brains):

A different one, so you can get a medal!

OpenStudy (kayders1997):

Okay :)

OpenStudy (kayders1997):

Do you wanna comment my name than? Just in case im helping someone else

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